4 * Copyright IBM, Corp. 2010
6 * This work is licensed under the terms of the GNU GPL, version 2. See
7 * the COPYING file in the top-level directory.
11 #ifndef TRACE_SIMPLE_H
12 #define TRACE_SIMPLE_H
14 void st_print_trace_file_status(void);
15 void st_set_trace_file_enabled(bool enable);
16 void st_set_trace_file(const char *file);
18 void st_flush_trace_buffer(void);
21 unsigned int tbuf_idx;
25 /* Note for hackers: Make sure MAX_TRACE_LEN < sizeof(uint32_t) */
26 #define MAX_TRACE_STRLEN 512
28 * Initialize a trace record and claim space for it in the buffer
30 * @arglen number of bytes required for arguments
32 int trace_record_start(TraceBufferRecord *rec, uint32_t id, size_t arglen);
35 * Append a 64-bit argument to a trace record
37 void trace_record_write_u64(TraceBufferRecord *rec, uint64_t val);
40 * Append a string argument to a trace record
42 void trace_record_write_str(TraceBufferRecord *rec, const char *s, uint32_t slen);
45 * Mark a trace record completed
47 * Don't append any more arguments to the trace record after calling this.
49 void trace_record_finish(TraceBufferRecord *rec);
51 #endif /* TRACE_SIMPLE_H */